Home / 342,814,442.40-514,221,663.60-255,516,400.80

Finding the Fourth Proportional to 342,814,442.40, 514,221,663.60 and 255,516,400.80

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Solution

The fourth proportional to 342,814,442.40, 514,221,663.60 and 255,516,400.80 is: 383,274,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,814,442.40 : 514,221,663.60 = 255,516,400.80 : x
  2. Step 2: Convert to fraction form
    342,814,442.40/514,221,663.60 = 255,516,400.80/x
  3. Step 3: Cross multiply
    342,814,442.40x = 514,221,663.60 × 255,516,400.80
  4. Step 4: Simplify right side
    342,814,442.40x = 131,392,068,696,460,384
  5. Step 5: Solve for x
    x = 131,392,068,696,460,384/342,814,442.40
  6. Step 6: Final answer
    x = 383,274,601.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.